Application of Pressure Dew Point in Compressed Air System

Air compressor make air’s volume reduced and pressure increased via doing mechanical movement, which is called compressed air. Compressed air is an important power source, it is widely used in many industrial fields, such as machinery, metallurgy, electronics, electric power, medicine, packaging, chemical industry, food, mining, textile and transportation etc. But the compressed air contains water, oil mist, impurities and solid particles, so it must be treatment trough filtered purification, after that resulting in dry, clean, oil-free compressed air. Filters can eliminate oil, dust , while air dryer can handle water.



Dew point temperature (Td)

It Refers to temperature of the water vapor saturated in the air at the beginning of the condensation, that is condensation temperature. At 100% relative humidity, the ambient temperature is equal to the dew point temperature. The smaller the dew point temperature much than , the smaller the dew point, which means the air much more dry. The dew point is not affected by temperature, but is affected by pressure.



Moisture in compressed air

As compressor compresses the air, dew point of the gas rises. At some point, the gas moisture reach saturates and begins to moisture condensation. Therefore, the treatment of water must be considered. For example, 30 kW compressor produces about 20 liters liquid for 8 hours when compressing air at 20 ℃ and 60% RH.

　　
Moisture in Compressed air will cause adversely affect for production process, not only affect the quality of the final product,but also cause harm to the compressed air system. Moisture can cause a number of hazards, such as hygroscopic product adhesion (such as sugar industry); coating process foaming (such as painting process "fish eyes").

　　
Most compressed air systems are made of steel or non-galvanized steel,it will be corroded when they touch with compressed air containing high amounts of moisture. Dust and flaking rust in the ducts can be blown into the sensitive equipment along the air path, which causes system break down. excessive moisture can cause icing in winter, If part of the system is installed outdoors.



Much better save energy Dew point measurement:
Reliable dew point measurement can accurately control the dryer whether it is working within the technical specifications. For adsorption dryer, the regeneration interval can be controlled by measuring the dew point, and can save a lot of energy for user. Unlike the traditional timer method, the system does not initiate the regeneration function as long as the drying degree of compressed air within user’s requirement. Dew point control can save up to 80% energy costs.


Working environment of typical compressed air dryer :

1.Dew point(Td)：

Refrigeration air dryer +3℃/7℃/10℃

Desiccant air dryer -20℃/-40℃/ -70℃
2.Output pressure 7bar，highest 10bar

3.Highest output +40℃


Biteman unit modular desiccant dryer and high precision filter---which is not only completely solve the water, oil, dust in the compressed air and other issues to provide technical support, and also greatly reduce energy consumption much than traditional purification equipment . Heat-free models need to 5% renewable gas consumption, micro-heat models only 2% the re-gas consumption, greatly reducing the energy consumption and production costs.


Original Article from Biteman Technology Co.,Ltd

评论

发表评论

此博客中的热门博文

Modern Planning in the Field of Compressed Air

图片
In the past, people only consider the initial investment and operating energy costs such as some simple economic factors, they often overlook the influence pollutants in the compressed air for system when established a compressed air system , thus ignoring the compressed air quality (it can not reach standard will bring huge invisible waste for enterprises), and these losses are often much higher than the high quality purchase and operating costs of purification equipment. Perhaps many companies believe that compressed air equipment just little impact when select ordinary one, but what will actually appear on us? In the 1980s, the industry lagged far behind today, the developed countries put forward ISO8573 standards for the purity of compressed air as for different gas equipment, while it failed to supply the gas equipment standard of compressed air, which caused serious impact, such as shorten the service life, decrease accuracy, increase failure rate, poor quality, and the safet
阅读全文

The Importance of Brand Awareness

图片
Brand is an invisible asset for the enterprise, it’s also the most valuable wealth. in the rapid development of the modern life, the difference become shrinking for product performance, quality, sales service from different enterprises, so the brand will become the main factor to choose products for consumer. "Stupid businessmen sell products, smart businessmen sell brand" This sentence fully illustrates the importance of the brand for the enterprise . therefore, companies should have enough brand awareness, and strive to run the business brand. it is the core content of the product, and brand awareness isn’t all other means of marketing, such as Atlas, Ingersoll Rand, Sullair, Kobelco, etc. these enterprises prefer to brand recognition rather than products identification , and it’s also become the only element of market choice. Brand not only refers to the product quality, but also includes the appearance, technology, function, utility and others, it need long-term accumulat
阅读全文

“Throw a sprat to catch a herring" to get the maximum benefit in a short period

图片
There is a question, why do we establish business? Companies just considering saving cost regardless of construction of enterprises, but it real should need the cost of consumption. later hear a manager says to the subordinate, " I have to find ways to earn back for company spent every penny", perhaps this is a lot of top management staff thought, which is good point for a top manager, then we will be reach the business target to obtain the greatest benefits in a short period.  It is not so easy to realize how to get the maximum benefit in a short period. such as a lot of leading brands seem to be impeccable, while the leading brand's business is far less flexible than some small businesses for imbalanced development of different regional market, much longer product line, and imbalanced development in different products. it is difficult to develop appropriate products and marketing strategy according to local conditions due to consider the national market. I
阅读全文